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Forum: Pentax SLR Lens Discussion
08-14-2017, 02:49 AM
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The old Leica 50mm f/3.5 Anastigmats [based upon the 1890 Zeiss protar design] aren't much to write home about. It seems most third party f/2.8 ~ f/3.5 50mm lenses are often the worst performers, when we get to f/4, the bar of performance is raised again to lofty heights: many 50mm f/4 macro lenses tend to be quite good.
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Forum: Pentax SLR Lens Discussion
08-12-2017, 09:05 AM
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just pick a fast 50 and stick with it, I own nearly 200 50mm lenses, and most* 50mm lenses all perform identically at f/8
* With a few exceptions, mostly among the exotic superspeed lenses which tend to perform better at wider apertures. I should go through the collection and pick out the absolute worst 50mm lens in it, that could be fun. I recall the Meyer-Optik Görlitz Domiplan 50mm f/2.8 has a reputation for being an optical obscenity.
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Forum: Pentax SLR Lens Discussion
08-11-2017, 05:08 PM
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Not in this day and age. No genre is safe from the ever growing plague of whoops-I-lost-my-contact-lens Bokeh to the borders photography.
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